[FSL P50x0] Xorg always restarts again and again after the the PowerPC updates 5.13-1

[Christian Zigotzky]

Am 04.05.21 um 16:41 schrieb Christophe Leroy:
>
>
> Le 04/05/2021 à 13:02, Christian Zigotzky a écrit :
>> Am 04.05.21 um 12:07 schrieb Christian Zigotzky:
>>> Am 04.05.21 um 11:49 schrieb Christophe Leroy:
>>>>
>>>>
>>>> Le 04/05/2021 à 11:46, Christian Zigotzky a écrit :
>>>>> Am 04.05.21 um 11:11 schrieb Christophe Leroy:
>>>>>>
>>>>>>
>>>>>> Le 04/05/2021 à 11:09, Christian Zigotzky a écrit :
>>>>>>> Am 04.05.21 um 10:58 schrieb Christophe Leroy:
>>>>>>>>
>>>>>>>>
>>>>>>>> Le 04/05/2021 à 10:29, Christian Zigotzky a écrit :
>>>>>>>>> On 04 May 2021 at 09:47am, Christophe Leroy wrote:
>>>>>>>>>> Hi
>>>>>>>>>>
>>>>>>>>>> Le 04/05/2021 à 09:21, Christian Zigotzky a écrit :
>>>>>>>>>>> Hi Christophe,
>>>>>>>>>>>
>>>>>>>>>>> Thanks for your answer but I think I don't know how it works 
>>>>>>>>>>> with the cherry-pick.
>>>>>>>>>>>
>>>>>>>>>>> $ git bisect start
>>>>>>>>>>
>>>>>>>>>> As you suspect the problem to be specific to powerpc, I can do
>>>>>>>>>>
>>>>>>>>>> git bisect start -- arch/powerpc
>>>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> $ git bisect good 68a32ba14177d4a21c4a9a941cf1d7aea86d436f
>>>>>>>>>>> $ git bisect bad c70a4be130de333ea079c59da41cc959712bb01c
>>>>>>>>>>
>>>>>>>>>> You said that powerpc-5.13-1 is bad so you can narrow the 
>>>>>>>>>> search I think:
>>>>>>>>>>
>>>>>>>>>> git bisect bad powerpc-5.13-1
>>>>>>>>>> git bisect good 887f3ceb51cd3~
>>>>>>>>> I tried it but without any success.
>>>>>>>>>
>>>>>>>>> git bisect bad powerpc-5.13-1
>>>>>>>>>
>>>>>>>>> Output:
>>>>>>>>> fatal: Needed a single revision
>>>>>>>>> Bad rev input: powerpc-5.13-1
>>>>>>>>
>>>>>>>> I don't understand, on my side it works. Maybe a difference 
>>>>>>>> between your version of git and mine.
>>>>>>>>
>>>>>>>> In that case, just use the SHA corresponding to the merge:
>>>>>>>>
>>>>>>>> git bisect bad c70a4be130de333ea079c59da41cc959712bb01c
>>>>>>>>
>>>>>>>> Christophe
>>>>>>> Do you use a BookE machine?
>>>>>>
>>>>>> No I don't unfortunately, and I have tried booting in QEMU a 
>>>>>> kernel built with your config, but it freezes before any output.
>>>>> You can use my kernels and distributions.
>>>>>
>>>>
>>>> Ok, I'll see if I can do something with them.
>>>>
>>>> In the meantime, have you been able to bisect ?
>>>>
>>>> Thanks
>>>> Christophe
>>> I am bisecting currently.
>>>
>>> $ git bisect start -- arch/powerpc
>>> $ git bisect good 887f3ceb51cd3~
>>> $ git bisect bad c70a4be130de333ea079c59da41cc959712bb01c
>> OK, there is another issue after the second bisecting step. The boot 
>> stops after loading the dtb and uImage file. I can't solve 2 issues 
>> with bisecting at the same time.
>
> In that case, you can use 'git bisect skip' to skip the one that is 
> not booting at all.
In my point of view 'git bisect skip' isn't a good idea because I will 
not find out if the skipped commit is good or bad and maybe the first 
bad commit.